Book website appointments into Google Calendar with webhook and Telegram alerts

by Cristian Dinca ✓ · 19 views · created 2026-08-17 · Support Chatbot

What this workflow does

This workflow has 18 nodes and runs when an HTTP POST request hits its webhook URL (plus 1 other trigger). Along the way it connects Google Calendar and Telegram.

How it runs

Trigger: When an HTTP POST request hits its webhook URL (plus 1 other trigger).

1. Your settings (Edit Fields (Set)): sets 4 fields: telegram_chat_id, appointment_minutes, open_hour…
2. Your settings (booking side) (Edit Fields (Set)): sets 3 fields: telegram_chat_id, appointment_minutes, from_email
3. Understand the request (Code): runs custom JavaScript code
4. Lock in the choice (Code): runs custom JavaScript code
5. Check the real diary (Google Calendar): work with calendar
6. Book it in the diary (Google Calendar): uses Google Calendar
7. Offer three real slots (Code): runs custom JavaScript code
8. Confirm to the owner (Telegram): uses Telegram
9. Worth waking the owner? (If): checks a condition and branches into true / false
10. Confirm on the page (Respond to Webhook): sends the response back to the webhook caller

…plus 6 more steps. See the full node list below.

Services it uses

Google CalendarTelegram

Before you upgrade to n8n 3.0

Nodes used (9)

• Webhookn8n-nodes-base.webhook
• Coden8n-nodes-base.code
• Google Calendarn8n-nodes-base.googleCalendar
• Ifn8n-nodes-base.if
• Telegramn8n-nodes-base.telegram
• Respond to Webhookn8n-nodes-base.respondToWebhook
• Waitn8n-nodes-base.wait
• Send Emailn8n-nodes-base.emailSend
• Edit Fields (Set)n8n-nodes-base.set

From the author

Quick overview This workflow receives website booking messages via a webhook, extracts service, urgency, and preferred timing, proposes three appointment slots with a follow-up reminder plan, alerts the owner via Telegram only for emergencies, and immediately…

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